Magnetism and Electromagnetism If a loop in a basic dc generator suddenly begins rotating at a faster speed, the induced voltage remains unchanged decreases reverses polarity increases remains unchanged decreases reverses polarity increases ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism A keeper is used to Provide a closed path for flux Change the direction of magnetic lines Amplify flux Restore lost flux Provide a closed path for flux Change the direction of magnetic lines Amplify flux Restore lost flux ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism Main causes of noisy solenoid are strong tendency of fan out of laminations at the end caused by repulsion among magnetic lines of force uneven bearing surface, caused by dirt or uneven wear between moving and stationary parts Both of the listed here None of these strong tendency of fan out of laminations at the end caused by repulsion among magnetic lines of force uneven bearing surface, caused by dirt or uneven wear between moving and stationary parts Both of the listed here None of these ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism Paramagnetic materials have relative permeability equal to unity equal to that ferromagnetic mate rials slightly less than unity slightly more than unity equal to unity equal to that ferromagnetic mate rials slightly less than unity slightly more than unity ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism The direction of magnetic lines of force is None of the listed here From south pole to north pole From north pole to south pole From one end of the magnet to another None of the listed here From south pole to north pole From north pole to south pole From one end of the magnet to another ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism A material which is slightly repelled by a magnetic field is known as diamagnetic material paramagnetic material ferromagnetic material conducting material diamagnetic material paramagnetic material ferromagnetic material conducting material ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS